“all the means by which one has so far attempted to make mankind moral were through and through immoral.” — Nietzsche, TI
In The Twilight of the Idols, Nietzsche warned us against the “improvers of mankind,” that such people never in fact sought to improve a thing, but rather sought to weaken mankind. Why weaken mankind? Because, fundamentally, the “improvers of mankind” hate all of mankind. If they didn’t why would they want to “improve” us?
The racists on the Right want to “improve” us through breeding. They imagine that it is their race which is the superior one which ought to be selected for, but if we are to be honest, this is really an argument for incest, ultimately. The Hapsburgs thought themselves too elite to marry outside their own family–the result being disfigurement and genetic disease. Purebred dogs are much more prone to health issues, while mutts are typically healthier and better-tempered. Those who would prefer one group of humans to another think mankind would be thus improved by breeding more of the preferred group over the unpreferred group(s)—if you think this in any way, shape, or form, you’re a racist (whether you’re on the Left or Right).
The postmodern multiculturalist Leftist version is the position that European culture is the bane of the world, and it needs to be completely destroyed in favor literally all other cultures. Of course, inverting the Right-wing racist position isn’t any sort of actual improvement on anything, since it’s really the same thing. Declaring one race superior to another, regardless of what race is considered inferior, is racist, just like declaring men superior to women or women superior to men is sexist.
Indeed, if you would “improve” women by making them more like men, you are sexist. And if you would “improve” men by making them more like women, you are sexist. Do you want to “improve” homosexuals by making them heterosexual? You’re homophobic.
But do we then need people to “improve” the racists, sexists, and homophobes? Those improvers—those who would impose such improvement on everyone—are little better in their bigotry against people as they are. Does that mean we shouldn’t try to improve mankind? Absolutely. Does that mean mankind cannot improve? Absolutely not. While those who tried to push acceptance of homosexuality primarily put homophobes on the defensive and retrenched their positions, T.V. shows like Ellen and Will & Grace actually caused people’s minds to change and, as a result, the American culture to change. Attempts at shaming people failed and backfired, while artistic representations, fun and entertaining popular stories, succeeded.
We do not need improvers of mankind. We do not need socialists, we do not need fascists, we do not need racists, and we do not need sexists out there trying to improve us. They each and every one want to reform us, improve us, change us because they hate us—they hate human beings as such, qua human beings. They hate human beings for being human. Why should we listen to such people? Would you take advice from someone who hated you?